Field Testing and Load Rating Report, Bridge FSBR-514, Fort Shafter, Hawaii

摘要

Bridge Diagnostics was contracted by the U.S. Army Corps of Engineers to perform live-load testing and load rating on Bridge FSBR-514 on Walker Road over Kahauiki Stream, Fort Shafter, Hawaii, in conjunction with three other structures - Bridge FSBR-201, FSBR-1608, and ERBR-9. A primary goal of the live-load testing was to determine the relative effects of different military load configurations. A second goal was to use the measured load responses to verify and calibrate a finite element model of the structure. The load test results indicated that the culvert was relatively stiff and did a good job of distributing load. Load ratings resulting from the field-verified model indicated that all examined load configurations could cross the bridge within inventory (design) limits. Load ratings were computed in accordance with the American Association of State Highway and Transportation Officials' AASHTO LRFD bridge design specifications (2004) and Manual for the condition evaluation and load and resistance factor rating of highway bridges (2003).